Mark Udall

Mark Udall (18 July 1950-) was a US Senator from Colorado (D) from 3 January 2009 to 3 January 2015, succeeding Wayne Allard and preceding Cory Gardner. He previously served in the US House of Representatives (D-CO 2) from 3 January 1999 to 3 January 2009, succeeding David Skaggs and preceding Jared Polis.

Biography
Mark Udall was born in Tucson, Arizona in 1950, the son of congressman Mo Udall and a relative of New Mexico US Senator Tom Udall and Utah senator Mike Lee. After college, he worked for an education nonprofit in Colorado, and he served in the State House from 1997 to 1999, in the US House of Representatives from 1999 to 2009, and in the US Senate from 2009 to 2015. In 2014, he was defeated for re-election by Republican challenger Cory Gardner.